Daikin RXYMQ6BVM - User Manual

Questions and Answers

K
Kayla CollinsAug 12, 2025
What to do if Daikin RXYMQ6BVM operation stopped suddenly but operation lamp is on?
- C
  Christopher HayesAug 13, 2025
  If your Daikin Air Conditioner stops suddenly but the operation lamp is still on, it's likely due to a large voltage fluctuation that triggered the system's protection mechanism. The air conditioner should automatically resume operation in about 3 minutes.
T
Tracy DavisAug 16, 2025
How to fix Daikin Air Conditioner that does not operate at all?
- D
  Denise VargasAug 16, 2025
  If your Daikin Air Conditioner does not operate at all, check if the fuse has blown or if the breaker has tripped. Turn the power on with the breaker switch in the off position. Do not turn the power on with the breaker switch in the trip position and contact your dealer. After power recovers, try operating the air conditioner again.
C
Casey WilsonAug 20, 2025
Why does Daikin Air Conditioner operation not start soon?
- C
  Carolyn MartinAug 20, 2025
  This delay is to protect your Daikin Air Conditioner. The microcomputer needs time to prepare for operation, so you should wait approximately 5 minutes, or up to 10 minutes.
J
Joseph OlsenAug 25, 2025
Why hot air does not flow out soon after Daikin RXYMQ6BVM Air Conditioner power supply is turned on?
- M
  mark78Aug 25, 2025
  The Daikin Air Conditioner is likely warming up. Allow about 1 minute for the system to reach a certain temperature before it starts discharging air.
A
Ashley AcostaAug 27, 2025
What to do if Daikin RXYMQ6BVM heating operation stops suddenly and a flowing sound is heard?
- W
  William RogersAug 27, 2025
  The system is removing frost from the outdoor unit. Wait approximately 3 to 8 minutes, but no more than 10 minutes, for the Daikin Air Conditioner to complete this process.
P
Paul GrahamAug 31, 2025
Why warm air exits Daikin RXYMQ6BVM Air Conditioner unit even though it is off?
- D
  Deanna RiveraAug 31, 2025
  If multiple units are operating on the same system, refrigerant will flow through the stopped units, causing warm air to exit even when the unit is off.
E
Elijah OwensSep 4, 2025
Why a “Zeen” sound is heard immediately after Daikin Air Conditioner power supply is turned on?
- R
  Ray Woods MDSep 4, 2025
  This sound comes from the electronic expansion valve inside the indoor unit as it starts working. The noise should reduce within about one minute.
J
Jason KellySep 7, 2025
What causes a continuous low “Shah” sound when Daikin RXYMQ6BVM is in cooling operation or at a stop?
- C
  Courtney WrightSep 8, 2025
  This sound is normal. It is the drain pump (optional accessory) operating.

Summary

Names of Parts

Installation Site

Guidelines for selecting a suitable installation location for the air conditioner.

Wiring Requirements

Information and precautions regarding electrical wiring for the air conditioner.

Operating Noise Considerations

Advice on selecting locations to minimize noise nuisance to neighbors.

System Relocation

Instructions to consult a dealer for remodelling and relocation of the air conditioner.

Cooling, Heating, Fan Operation

Adjusting the Airflow Direction

How to set Master Remote Controller

Setting the Master Remote Controller

Steps for designating and configuring the master remote controller for multi-unit systems.

How to Designate Master Remote Controller

Summary

Names of Parts

Installation Site

Guidelines for selecting a suitable installation location for the air conditioner.

Wiring Requirements

Information and precautions regarding electrical wiring for the air conditioner.

Operating Noise Considerations

Advice on selecting locations to minimize noise nuisance to neighbors.

System Relocation

Instructions to consult a dealer for remodelling and relocation of the air conditioner.

Cooling, Heating, Fan Operation

Adjusting the Airflow Direction

How to set Master Remote Controller

Setting the Master Remote Controller

Steps for designating and configuring the master remote controller for multi-unit systems.

How to Designate Master Remote Controller

This document serves as an operation manual for the Daikin VRV IV System air conditioner, specifically for models RXYMQ5BVM and RXYMQ6BVM. It provides comprehensive instructions for safe and effective use, along with troubleshooting and maintenance guidelines.

Function Description

The Daikin VRV IV System air conditioner is designed to provide cooling, heating, dry, and fan operations for indoor environments. It utilizes a sophisticated system to regulate room temperature and humidity, ensuring comfort for occupants. The system can operate in various modes:

Cooling: Reduces the room temperature to a comfortable level. The recommended temperature setting for cooling is 26 to 28 °C.
Heating: Increases the room temperature. The recommended temperature setting for heating is 20 to 24 °C.
Program Dry Operation: This function alternates between weak cooling and stopping the unit to remove humidity from the air, preventing the room temperature from dropping excessively. The microcomputer automatically controls the temperature and fan strength in this mode. This function is not available if the room temperature is 16°C or lower.
Fan Operation: Circulates air without significant temperature change. The system is controlled via a wired remote controller (BRC1E62 is specifically described in this manual), which allows users to select operation modes, set temperatures, and adjust airflow. The remote controller features an LCD display with a backlight for easy readability, even in low light conditions. The system also includes an ON/OFF button, an operation lamp (green, which blinks during malfunctions), and a cancel button to return to previous screens.

Usage Features

The manual emphasizes several key aspects for optimal usage and energy saving:

Temperature Setting: Users are advised to set the room temperature appropriately, avoiding excessive cooling or heating to save energy. Recommended ranges are 26-28°C for cooling and 20-24°C for heating.
Airflow Adjustment: The airflow direction can be adjusted to maximize comfort. Cold air tends to collect near the floor, while hot air rises. Therefore, for cooling, horizontal airflow is recommended, and for heating, downward airflow is suggested. The airflow can be set to automatic, where the flap adjusts itself, or fixed by the user.
Timer Operation: The OFF TIMER function allows users to set a specific time (from 30 to 180 minutes in 10-minute increments) after which the unit will automatically stop. This is useful for pre-setting operation times to achieve desired room temperatures before arrival.
Master Remote Controller: In systems with multiple indoor units connected to one outdoor unit, one remote controller must be designated as the master. Only the master remote controller can select the cooling/heating operation mode. Slave remote controllers will automatically follow the master's operation mode, though they can switch to program dry mode if the system is already in cooling.
Power Management: To protect the unit, it is recommended to turn on the main power switch 6 hours before the first operation. If the air conditioner is not used for prolonged periods, turning off the main power switch is advised to save energy, as the unit still consumes some power even when stopped. When resuming operation after a long period, turn on the main power switch 6 hours prior for smooth running.
Environmental Considerations: Users are advised to keep windows covered with blinds or curtains to enhance cooling/heating efficiency. Ventilating the room periodically is also recommended, especially after long periods of air conditioner use. Avoid placing objects near air inlets or outlets, as this can impair performance.
Safety Precautions: The manual highlights critical safety warnings, such as not using improper fuses, ensuring proper earthing, installing an earth leakage breaker, and consulting a dealer for installation, modification, or repair. It also warns against prolonged direct exposure to airflow, operating a malfunctioning unit, and using flammable materials near the unit.

Maintenance Features

The manual outlines several maintenance-related points to ensure the longevity and proper functioning of the air conditioner:

Air Filter Cleaning: When the display shows "TIME TO CLEAN AIR FILTER," users should refer to the indoor unit's instruction manual and clean the air filter. This is crucial for maintaining air quality and unit performance.
Professional Maintenance: The document recommends periodical maintenance by a specialist, in addition to regular cleaning by the user. Over time, the inside of the air conditioner can become dirty, leading to poor performance. The cost of specialist maintenance is borne by the user.
Troubleshooting: A dedicated section provides guidance on common issues that may arise during operation, distinguishing between normal operational characteristics and actual malfunctions. For instance, sounds like "Zeen," "Shah," or "Pishi-pishi" are explained as normal operational noises related to valve operations or plastic part expansion/contraction. Water dripping from the outdoor unit during defrost or cooling/dry mode is also explained as normal.
Error Messages: In case of a malfunction, the remote controller may display an error code (e.g., "Error code: A1") and contact information. Users are instructed to notify their local dealer with the error code and model name.
Power Outages: If the main power supply is turned off during operation, the unit will automatically restart after power is restored.
Refrigerant Leakage: In the rare event of refrigerant leakage, users are warned about the potential generation of noxious gases if the refrigerant comes into contact with burning appliances. They are instructed to turn off burning appliances, ventilate the room, and contact their dealer.
Cleaning the Indoor Unit: If the indoor unit is extremely contaminated, leading to uneven temperature distribution, professional cleaning by a Daikin dealer is necessary.
Relocation: For any relocation of the air conditioner, users must consult their Daikin dealer to ensure proper reinstallation and avoid issues like water leakage or electric shocks.
Do Not Disassemble/Modify: Users are strictly warned against disassembling, modifying, or repairing the air conditioner themselves, as this can lead to water leakage, electric shock, or fire. All such servicing should be performed by a qualified dealer.